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Heart|Natural|GIA

1.51ct F SI1 Heart Natural Diamond

ID • F/SI1 • GIA 5232690820

Certificate GIA 5232690820

Diamond specifications and retailer prices

From $5,983 SGD
$4,678 USD
As of November 2, 2026
Save $5,132 SGD (46%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $11,115 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5232690820. Listed at 9 retailers as of October 30, 2026, with prices from $5,983 to $11,115, a $5,132 spread on the same certified stone. NZ Jewellers lists it at $11,115. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.1°
Pavilion angle42.59°
OriginNatural
Grading LabGIA
CertificateGIA 5232690820
Dimensions6.89 × 7.98 × 4.86 mm
L/W Ratio1.16
Top View
6.89 mm7.98 mm1.51 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5232690820
Side View
Table 63.0%Crown 37.1°Girdle: Slightly Thick to Very ThickPavilion 42.59°Culet: NoneDepth 60.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $11,115 SGD|Low: $5,983 SGD|High: $11,284 SGD|Avg: $7,519 SGD|-1.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 10$5,983 SGD
Retailer 2$6,217 SGD
Retailer 8$6,241 SGD
Retailer 3$6,510 SGD
Retailer 6$6,645 SGD
Retailer 9$6,645 SGD
Retailer 11$6,801 SGD
Retailer 7$6,804 SGD
Retailer 12$7,285 SGD
Retailer 4$7,753 SGD
Retailer 5$10,585 SGD
NZ Jewellers$11,115 SGD

35 data points across 12 retailers

9 retailers$5,983 SGD to $11,115 SGD

A
Cheapest Retailer
-
$5,983 SGD
$4,678 USD
A
Retailer 2
-
$6,217 SGD
£3,828 GBP
View
A
Retailer 3
-
$6,241 SGD
$4,880 USD
View
A
Retailer 4
-
$6,645 SGD
$5,196 USD
View
B+
Retailer 5
-
$6,645 SGD
$5,196 USD
View
Retailer 6
-
$6,801 SGD
A$8,182 AUD
View
Price last confirmed 24 days ago
B+
Retailer 7
-
$6,804 SGD
$5,320 USD
View
B
Retailer 8
-
$10,585 SGD
£6,517 GBP
View
Most Expensive
B
NZ Jewellers
92849da8-4f48-4f96-9700-94ee609a272c · Oct 30
$11,115 SGD
$8,691 USD
View
8 more retailers have this diamond
Prices start from $5,983 SGDSave up to $5,132 SGD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.51ct Heart
$5,983 SGD